I am looking at implementing listener application for Salesforce Outbound Messaging.
The walkthrough implements it using the deprecated ASMX web service. The code is generated using wsdl.exe with /serverInterface switch.
<?xml version="1.0" encoding="UTF-8"?>
<definitions targetNamespace="http://soap.sforce.com/2005/09/outbound"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:tns="http://soap.sforce.com/2005/09/outbound"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:ent="urn:enterprise.soap.sforce.com"
xmlns:ens="urn:sobject.enterprise.soap.sforce.com">
<types>
<schema elementFormDefault="qualified" xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="urn:enterprise.soap.sforce.com">
<!-- Our simple ID Type -->
<simpleType name="ID">
<restriction base="xsd:string">
<length value="18"/>
<pattern value='[a-zA-Z0-9]{18}'/>
</restriction>
</simpleType>
</schema>
<schema elementFormDefault="qualified" xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="urn:sobject.enterprise.soap.sforce.com">
<import namespace="urn:enterprise.soap.sforce.com" />
<!-- Base sObject (abstract) -->
<complexType name="sObject">
<sequence>
<element name="fieldsToNull" type="xsd:string" nillable="true" minOccurs="0" maxOccurs="unbounded"/>
<element name="Id" type="ent:ID" nillable="true" />
</sequence>
</complexType>
<complexType name="AggregateResult">
<complexContent>
<extension base="ens:sObject">
<sequence>
<any namespace="##targetNamespace" minOccurs="0" maxOccurs="unbounded" processContents="lax"/>
</sequence>
</extension>
</complexContent>
</complexType>
<complexType name="Contact">
<complexContent>
<extension base="ens:sObject">
<sequence>
<element name="Email" nillable="true" minOccurs="0" type="xsd:string"/>
<element name="FirstName" nillable="true" minOccurs="0" type="xsd:string"/>
<element name="LastName" nillable="true" minOccurs="0" type="xsd:string"/>
</sequence>
</extension>
</complexContent>
</complexType>
</schema>
<schema elementFormDefault="qualified" xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://soap.sforce.com/2005/09/outbound">
<import namespace="urn:enterprise.soap.sforce.com" />
<import namespace="urn:sobject.enterprise.soap.sforce.com" />
<element name="notifications">
<complexType>
<sequence>
<element name="OrganizationId" type="ent:ID" />
<element name="ActionId" type="ent:ID" />
<element name="SessionId" type="xsd:string" nillable="true" />
<element name="EnterpriseUrl" type="xsd:string" />
<element name="PartnerUrl" type="xsd:string" />
<element name="Notification" maxOccurs="100" type="tns:ContactNotification" />
</sequence>
</complexType>
</element>
<complexType name="ContactNotification">
<sequence>
<element name="Id" type="ent:ID" />
<element name="sObject" type="ens:Contact" />
</sequence>
</complexType>
<element name="notificationsResponse">
<complexType>
<sequence>
<element name="Ack" type="xsd:boolean" />
</sequence>
</complexType>
</element>
</schema>
</types>
<!-- Method Messages -->
<message name="notificationsRequest">
<part element="tns:notifications" name="request"/>
</message>
<message name="notificationsResponse">
<part element="tns:notificationsResponse" name="response"/>
</message>
<!-- PortType -->
<portType name="NotificationPort">
<operation name="notifications">
<documentation>Process a number of notifications.</documentation>
<input message="tns:notificationsRequest"/>
<output message="tns:notificationsResponse"/>
</operation>
</portType>
<!-- Binding
You need to write a service that implements this binding to receive the notifications
-->
<binding name="NotificationBinding" type="tns:NotificationPort">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="notifications">
<soap:operation soapAction=""/>
<input>
<soap:body use="literal"/>
</input>
<output>
<soap:body use="literal"/>
</output>
</operation>
</binding>
<!-- Service Endpoint -->
<service name="NotificationService">
<documentation>Notification Service Implementation</documentation>
<port binding="tns:NotificationBinding" name="Notification">
<soap:address location="http://www.myserver.com/salesforceoutboundprototype/notificationport.svc"/>
</port>
</service>
</definitions>
TLDR is I need to implement NotificationBinding so that Salesforce can call my web service when an event occurs on their system.
I since have realized svcutil does not natively support Contract-First development.
As per Contract-First SOA with WCF I used WSCF. Blue to generate server-side stubs from Salesforce WSDL. Whilst the code compiles WSDL generated by my service does not have an operation of the required notification.
